单项选择题
Releasing oil from the sea anchor of a lifeboat may（）.
A.keep the propeller from being fouled
B.increase propeller speed
C.help calm the waves in the vicinity of the craft
D.increase the holding power of the sea anchor
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相关考题
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单项选择题
On a vessel，if someone fell overboard and you did not know over which side the person fell，you should（）.
A.immediately reverse the engines
B.stop the propellers from turning and throw a ring buoy over the side
C.increase speed to full to get the vessel away from the person
D.first put the rudder hard over in either direction -
单项选择题
On a ship，a fire pump may be used for other purposes if（）.
A.the other services are run off a reducing station with a pressure gage
B.a separate fire pump is available for use on the fire main
C.all other services are operated by a manifold near the pump
D.All of the above -
单项选择题
On a rigid liferaft which is equipped with all of the required equipment you may NOT find a（）.
A.boathook
B.fishing kit
C.lifeline or grab rail
D.sea painter
